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Improvements to WHERE-clause debug tracing. Show TK_MATCH expressions and

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show more details on WhereTerm traces.

FossilOrigin-Name: 71087c12bc75a82f5d1051600a442ef6efc5e899
This commit is contained in:
drh
2016-05-27 12:30:20 +00:00
parent 8dc8247eab
commit c84a4020ef
5 changed files with 44 additions and 18 deletions
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35
src/where.c
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@@ -1648,19 +1648,41 @@ static void whereTermPrint(WhereTerm *pTerm, int iTerm){
sqlite3DebugPrintf("TERM-%-3d NULL\n", iTerm);
}else{
char zType[4];
char zLeft[50];
memcpy(zType, "...", 4);
if( pTerm->wtFlags & TERM_VIRTUAL ) zType[0] = 'V';
if( pTerm->eOperator & WO_EQUIV ) zType[1] = 'E';
if( ExprHasProperty(pTerm->pExpr, EP_FromJoin) ) zType[2] = 'L';
if( pTerm->eOperator & WO_SINGLE ){
sqlite3_snprintf(sizeof(zLeft),zLeft,"left={%d:%d}",
pTerm->leftCursor, pTerm->u.leftColumn);
}else if( (pTerm->eOperator & WO_OR)!=0 && pTerm->u.pOrInfo!=0 ){
sqlite3_snprintf(sizeof(zLeft),zLeft,"indexable=0x%lld",
pTerm->u.pOrInfo->indexable);
}else{
sqlite3_snprintf(sizeof(zLeft),zLeft,"left=%d", pTerm->leftCursor);
}
sqlite3DebugPrintf(
"TERM-%-3d %p %s cursor=%-3d prob=%-3d op=0x%03x wtFlags=0x%04x\n",
iTerm, pTerm, zType, pTerm->leftCursor, pTerm->truthProb,
"TERM-%-3d %p %s %-12s prob=%-3d op=0x%03x wtFlags=0x%04x\n",
iTerm, pTerm, zType, zLeft, pTerm->truthProb,
pTerm->eOperator, pTerm->wtFlags);
sqlite3TreeViewExpr(0, pTerm->pExpr, 0);
}
}
#endif
#ifdef WHERETRACE_ENABLED
/*
** Show the complete content of a WhereClause
*/
void sqlite3WhereClausePrint(WhereClause *pWC){
int i;
for(i=0; i<pWC->nTerm; i++){
whereTermPrint(&pWC->a[i], i);
}
}
#endif
#ifdef WHERETRACE_ENABLED
/*
** Print a WhereLoop object for debugging purposes
@@ -3124,9 +3146,7 @@ static int whereLoopAddOr(
WHERETRACE(0x200, ("OR-term %d of %p has %d subterms:\n",
(int)(pOrTerm-pOrWC->a), pTerm, sSubBuild.pWC->nTerm));
if( sqlite3WhereTrace & 0x400 ){
for(i=0; i<sSubBuild.pWC->nTerm; i++){
whereTermPrint(&sSubBuild.pWC->a[i], i);
}
sqlite3WhereClausePrint(sSubBuild.pWC);
}
#endif
#ifndef SQLITE_OMIT_VIRTUALTABLE
@@ -4310,10 +4330,7 @@ WhereInfo *sqlite3WhereBegin(
sqlite3DebugPrintf(")\n");
}
if( sqlite3WhereTrace & 0x100 ){ /* Display all terms of the WHERE clause */
int i;
for(i=0; i<sWLB.pWC->nTerm; i++){
whereTermPrint(&sWLB.pWC->a[i], i);
}
sqlite3WhereClausePrint(sWLB.pWC);
}
#endif